The Lrs4-Csm1 monopolin complex associates with kinetochores during anaphase and is required for accurate chromosome segregation

Lrs4 and Csm1, components of the monopolin complex, localize to the rDNA where they regulate rDNA maintenance and segregation. During meiosis, the complex also associates with kinetochores to bring about sister kinetochore co-orientation, an essential aspect of meiosis I chromosome segregation. We s...

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Bibliographic Details
Main Authors: Brito, Ilana Lauren (Contributor), Monje-Casas, Fernando (Author), Amon, Angelika B (Author)
Other Authors: Massachusetts Institute of Technology. Department of Biology (Contributor), Massachusetts Institute of Technology. Department of Civil and Environmental Engineering (Contributor), Koch Institute for Integrative Cancer Research at MIT (Contributor), Amon, Angelika B. (Contributor)
Format: Article
Language:English
Published: Landes Bioscience, 2011-09-15T16:15:31Z.
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Online Access:Get fulltext
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042 |a dc 
100 1 0 |a Brito, Ilana Lauren  |e author 
100 1 0 |a Massachusetts Institute of Technology. Department of Biology  |e contributor 
100 1 0 |a Massachusetts Institute of Technology. Department of Civil and Environmental Engineering  |e contributor 
100 1 0 |a Koch Institute for Integrative Cancer Research at MIT  |e contributor 
100 1 0 |a Amon, Angelika B.  |e contributor 
100 1 0 |a Brito, Ilana Lauren  |e contributor 
100 1 0 |a Amon, Angelika B.  |e contributor 
700 1 0 |a Monje-Casas, Fernando  |e author 
700 1 0 |a Amon, Angelika B  |e author 
245 0 0 |a The Lrs4-Csm1 monopolin complex associates with kinetochores during anaphase and is required for accurate chromosome segregation 
260 |b Landes Bioscience,   |c 2011-09-15T16:15:31Z. 
856 |z Get fulltext  |u http://hdl.handle.net/1721.1/65854 
520 |a Lrs4 and Csm1, components of the monopolin complex, localize to the rDNA where they regulate rDNA maintenance and segregation. During meiosis, the complex also associates with kinetochores to bring about sister kinetochore co-orientation, an essential aspect of meiosis I chromosome segregation. We show here that the Lrs4-Csm1 complex associates with kinetochores during mitosis. This kinetochore localization is observed during anaphase and depends on the on the Mitotic Exit Network, a signaling cascade essential for the completion of mitosis. Furthermore, we find that Lrs4 and Csm1 are important for chromosome segregation fidelity. Our results reveal a previously unanticipated function for Lrs4-Csm1 in mitotic chromosome segregation. 
520 |a National Institutes of Health (U.S.) (Grant GM62207) 
520 |a Howard Hughes Medical Institute 
546 |a en_US 
655 7 |a Article 
773 |t Cell Cycle